1. African Centre of Excellence for Public Health and Toxicological Research (ACE-PUTOR), University of Port Harcourt, PMB, Port Harcourt, Choba, Nigeria
2. Advanced Research Centre, European University of Lefke, Lefke, Northern Cyprus, Turkey
3. World Bank Africa Centre of Excellence in Oilfield Chemicals Research (ACE-CEFOR), University of Port Harcourt, PMB, Port Harcourt, Choba, Nigeria
4. Department of Anatomy, Faculty of Basic Medical Sciences, College of Health Sciences, University of Port Harcourt, PMB, Port Harcourt, Choba, Nigeria
5. Department of Pharmacology & Toxicology, Faculty of Pharmacy, University of Science & Technology, Agbani, Enugu State, Nigeria
6. Faculty of Medicine, Institute of Anatomy, University of Belgrade, Belgrade, Serbia